Bingo!
In the days of media monopoly you would call BS and toss something at the TV.
The wife and kids would look at you like you were crazy and the dog would flee the room...and your words fell on deaf ears.
Now with the internet, you call BS and there is another follow who understands and seconds the opinion, and a third.. and the word spreads and soon, thanks to folks like Newsbusters FR,Powerline and Little green footballs, the lie is exposed.